Articles | Volume 21, issue 18
https://doi.org/10.5194/acp-21-14131-2021
https://doi.org/10.5194/acp-21-14131-2021
Research article
 | 
23 Sep 2021
Research article |  | 23 Sep 2021

“Warm cover”: precursory strong signals for haze pollution hidden in the middle troposphere

Xiangde Xu, Wenyue Cai, Tianliang Zhao, Xinfa Qiu, Wenhui Zhu, Chan Sun, Peng Yan, Chunzhu Wang, and Fei Ge

Data sets

Air temperature of surface observation data Wenyue Cai https://doi.org/10.5281/zenodo.5371982

L-band sounding data Wenyue Cai https://doi.org/10.5281/zenodo.5371868

The haze days of surface observation data Wenyue Cai https://doi.org/10.5281/zenodo.5372006

The PM2:5 concentration data Wenyue Cai https://doi.org/10.5281/zenodo.5372016

ERA-20C, Daily ECMWF https://apps.ecmwf.int/datasets/data/era20c-daily/levtype=pl/

ERA-20C, Monthly Means of Daily Means ECMWF https://apps.ecmwf.int/datasets/data/era20c-moda/levtype=pl/type=an/

ERA Interim, Daily ECMWF https://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=pl/

ERA Interim, Monthly Means of Daily Means ECMWF https://apps.ecmwf.int/datasets/data/interim-full-moda/levtype=pl/

The NCEP/NCAR 40-Year Reanalysis Project (https://psl.noaa.gov/data/gridded/data.ncep.reanalysis. pressure.html) E. Kalnay, M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. C. Mo, C. Ropelewski, J. Wang, A. Leetmaa, R. Reynolds, R. Jenne, and D. Joseph https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2

Download
Short summary
We found that the structure of atmospheric thermodynamics in the troposphere can be regarded as a strong forewarning signal for variations of surface PM2.5 concentration in heavy air pollution.
Altmetrics
Final-revised paper
Preprint